8764894385520 has 640 divisors, whose sum is σ = 33817759524864. Its totient is φ = 1828565286912.

The previous prime is 8764894385473. The next prime is 8764894385531. The reversal of 8764894385520 is 255834984678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1093284552 + ... + 1093292568.

Almost surely, 2^{8764894385520} is an apocalyptic number.

8764894385520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8764894385520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16908879762432).

8764894385520 is an abundant number, since it is smaller than the sum of its proper divisors (25052865139344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8764894385520 is a wasteful number, since it uses less digits than its factorization.

8764894385520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8609 (or 8603 counting only the distinct ones).

The product of its (nonzero) digits is 464486400, while the sum is 69.

The spelling of 8764894385520 in words is "eight trillion, seven hundred sixty-four billion, eight hundred ninety-four million, three hundred eighty-five thousand, five hundred twenty".